Chess Grand Masters have reached the coveted fifth level of the competitive chess circuit. There, they sit upon their throne, gazing downwards upon their victims. Those who engage Grand Masters in chess improve their abilities in logic and chess more quickly.

Celestial Explorer

Celestial Explorers have discovered 20 celestial bodies through their telescope. Their extensive knowledge of the heavens allows them to discuss the stars with their friends and neighbors.

Teacher Extraordinaire

Teacher Extraordinaires have spent at least 20 hours tutoring children and students. Because of this, they are much more effective when tutoring others.

Skill Professor

Skill Professors have spent at least 30 hours tutoring other Sims in skills. Because of this, they are much more effective when teaching skills to others.

Master Chemist

Master Chemists have discovered 10 potions. After learning every possible potion, they can create potions at a lower cost!

When using a telescope and Searching the Galaxy, your Sim will sometimes discover a celestial body. It may be a comet, planet, star, moon, galaxy, black hole, neutron or satellite. Your Sim will earn a small amount of money or up to several thousand (for discovering a black hole) for contributing to the scientific community.

Also, Sims may see a meteor fall from the sky and land somewhere in town. They can use Map View to find the land site and travel there to collect the space rock. There is also a chance that the meteor will fall on them.

When moving to another neighborhood, Sims must rediscover all the potions. However, because each discovery adds 10% to the discovery rate without resetting it, a Sim that had completed the Master Chemist challenge previously will not be able to complete the challenge ever, and when the Sim discovers 10 potions throughout the Sim's cumulative history, the challenge is marked as completed. However, the Sim does have another opportunity to discover each potion for free once.

To complete the Teacher Extraordinaire simply select "Friendly" then "Tutor" not "Tutor in..."